ah never had idea that it should be enabled in bios as well. thanks will check out bios options if there is something like that , but in MBO manual it never mentioned BIOS just to plug it if using more GPUs.In any case better safe then sorry, frying 4 titans with the rest of the comp would really really hurt :)thanks

I was lokoing at manual but passus for that one is rather small and on scheme it is market together with 8pin connector so it took a while to find description after being pointed out by couple guys.also it is a bit vague and there are no more details needed, plus got bunch of other good advice here as well.

dwoodwardSeems your question has been answered already but I gotta ask. Am I the only person who still just takes 5 seconds to read the motherboard manual when I don't know what a plug is for?

lol.... I'm the same way, I pretty much know my way around the computer motherboard now, the only thing I look at the manual for now is what key to get into the bios, some are F2 key, some are delete key, etc.

Now to confirm that theory is one thing practice is completely different one.My titans arrived, now all 4 of them sitting happily there.Also got thermaltake 1500w PSU, as that was the only one I could get in 2 weeks time instead of 2 months, plus got some goo d reviews in coulpe pages so happy with it.But problem is that ALL 6+2 connectors from PSU are attached to cards. 4x 6+2 and 4x6pin only all in GPUs.then 8pin and 24pin to motherboard. There is no 6 pin left to attach into motherboard 6pin.So what now? :)For now it is working... no OC on anything but should I be worried or..

THere is 2x molex to 6 pin adapter that came with EVGA card... should I use that one and get two molex into 6pin and plug that into board??Any advice welcomed as I would like to do some basic CPU OC as well. Thanks

ok.. installed all... all 6+2 pins from PSU were used for GPUs.. soI run without 6 pin first but then took a dive and got adapter 2x molex into 16 pin and plugged that to mother board as well. had some crashing with crysis before that will see how it will behave now.BUT

now just checked gpu-z and now it says that all titans are on PCI-E 2.0 @ 16.0, and it should be PCI-E 3.0 as I'm aware of it...what the....any ideas???

It is all good in theory but hear what happaned.Got two more Titans and new PSU.Plugged all in and then used ALL 6+2 cables for GPUs, 4 as 8pin and 4 as 6pins. For MBO had 8 pin and 24 pin. So left without a single 6pin to plug into MBO. After consulting Asus support I took 2 molex and used molex to 6 pin cable that arrived with one of titans and then plugged that one into MBO. Works pretty stable for now, Titans are SC so I'm not OCing them, plus they are on air so already getting rather hot with crysis 3 for example, did just some basic auto tuning OC with asus AI up to 4.5Ghz and all stable so far. Even corsair 800D looks pretty small now with everything in there. especially part behind case where I drag all cables.. could use some more room there and bigger holes hehe but all fine. it is working :)

mirkojNow to confirm that theory is one thing practice is completely different one.My titans arrived, now all 4 of them sitting happily there.Also got thermaltake 1500w PSU, as that was the only one I could get in 2 weeks time instead of 2 months, plus got some goo d reviews in coulpe pages so happy with it.But problem is that ALL 6+2 connectors from PSU are attached to cards. 4x 6+2 and 4x6pin only all in GPUs.then 8pin and 24pin to motherboard. There is no 6 pin left to attach into motherboard 6pin.So what now? :)For now it is working... no OC on anything but should I be worried or..

THere is 2x molex to 6 pin adapter that came with EVGA card... should I use that one and get two molex into 6pin and plug that into board??Any advice welcomed as I would like to do some basic CPU OC as well. Thanks

Yes I would use that 2 x molex to single 6 pin pci-E plug for the motherboard. Its cirtical ya use it in for that setup

those 4 titan cards will but a major strain on the 24 pin motherboard plug which can burn up. It has happened before in Tri and quad SLI based systems.